Rhubarb. Rhubarb tastes tart, and you can enjoy it raw, roasted, or puréed in a small, low-carb smoothie or moderate portion of sauce. A ½-cup serving contains about 1.7 g of net carbs and only about 13 calories.Click to see full answer. Furthermore, can you eat rhubarb on a low carb diet?Don’t eat the leaves, though, as they are poisonous. Is rhubarb a smart low-carb food? Rhubarb is low in carbs but it is usually consumed in recipes with a lot of sugar, so low-carbers should be wary of any rhubarb-containing dishes made for them.One may also ask, will watermelon knock me out of ketosis? “To maintain nutritional ketosis, most people need to stick with around 50 grams of carbs or less. Given the high-carb content in watermelon, it is not a good option to include in your ketogenic meal plan.” Of course, you don’t need to swear off watermelon forever – a bite or two won’t throw you out of ketosis. Also know, can you eat oranges on a keto diet? As you can see, other kinds of fruit are fairly high in carbs, making it very challenging to eat them and stay on a keto diet. One medium size orange is about 12 grams of carbs.What can you not eat on keto? What to Avoid Beans, peas, lentils, and peanuts. Grains, such as rice, pasta, and oatmeal. Low-fat dairy products. Added sugars and sweeteners. Sugary beverages, including juice and soda. Traditional snack foods, such as potato chips, pretzels, and crackers.